When I save documents as image,

E.g. before saving I rename "Xyz" , but the new name "xyz" shows in recent documents tab only. It doesn't save as "xyz" name in my Sd card folder. Image saved as "27/04/17 12:38 PM Office Lens" in SD card. Please do something.
If I rename my scanned doc as "xyz" than it should be save as "xyz" in Sd card also.